119 research outputs found
Beautiful Day. Pleasant Walk: Walking and Landscape in the Works of Eswick Evans, John D. Godman, Elizabeth Fries Ellet, and Bradford Torrey
Throughout the nineteenth century, walking for leisure and for spiritual endeavor in America correlated with the rise of literary romanticism. This burgeoning fashion of pedestrian travel, coupled with an impulse to experience the ever expanding nation, spawned a new and enduring subgenre in American letters â the walking text. Many scholars consider Henry David Thoreau and John Muir to be the centuryâs greatest literary amblers and naturalists; while their catalogs of walking literature are foundational, they are not exclusive. âBeautiful Day. Pleasant Walk: Walking and Landscape in Works of Estwick Evans, John D. Godman, Elizabeth Fries Ellet, and Bradford Torreyâ aims to establish the importance of several underappreciated nineteenth century American pedestrians and landscapes. In addition to analyzing the development and importance of walking texts throughout the century, this dissertation also considers the geographies over which the authors traveled. The northern grounds of Ohioâs forgotten Great Black Swamp (Evans) and Philadelphiaâs bucolic Wissahickon Creek (Godman), team with the southern worlds of rural Antebellum landscapes (Ellet) and Civil War battlefields (Torrey) to create a compelling map of nineteenth century America. Finally, through first-hand, authorial accounts this study discusses each terrainâs historical contexts as well as their current conditions
Bi-Lipschitz arcs in metric spaces with controlled geometry
We generalize a bi-Lipschitz extension result of David and Semmes from
Euclidean spaces to complete metric measure spaces with controlled geometry
(Ahlfors regularity and supporting a Poincar\'e inequality). In particular, we
find sharp conditions on metric measure spaces so that any bi-Lipschitz
embedding of a subset of the real line into extends to a bi-Lipschitz
embedding of the whole line. Along the way, we prove that if the complement of
an open subset of has small Assouad dimension, then it is a uniform
domain. Finally, we prove a quantitative approximation of continua in by
bi-Lipschitz curves.Comment: 28 page
The Lush and the Barren: Nature in William Bartramâs Travels and Cormac McCarthyâs The Road
âThe Lush and the Barren: Nature in William Bartramâs Travels and Cormac McCarthyâs The Roadâ seeks to understand the connections between these two seemingly disparate texts. The works exist on binaries of the environmental paradigm â Travels presents a fecund landscape; The Road envisions a scorched one. âThe Lush and the Barrenâ considers these works as being two faces on the same coin of the southern American terrain. Positioned between each text, haunts the environmental destruction of a small town in East Tennessee called Copperhill. Destroyed by copper smelting in the early twentieth century, the land surrounding Copperhill for many years resembled a moonscape. The desolate ground of Ducktown Basin looms and has become more than a razed corner of Tennessee; it possesses symbolic resonance and serves as crossroads between two moments in the history of America: Travels looks back beyond the age of written memory to a time when the land was flocked in so-called virgin wilderness, and The Road that points ahead to an apocalyptic future, where the countryside is completely destroyed and burned to cinder. If Copperhill provides a glimpse into two worlds, an echo stone from which the imagined and the unimaginable commingle, then two literary works, William Bartramâs Travels and Cormac McCarthyâs The Road, function as mythical road maps from out of the garden and into the desert of our own destruction. âThe Lush and The Barrenâ holds up these three landscapes and muses on the possible destiny of America
Photosynthesis and Cellular Respiration (LS1): A Hands-On Approach Supporting the NGSS and ELA CCSS
We will combine hands-on science investigations with supporting literacy activities to help students build conceptual models of photosynthesis
Photosynthesis and Cellular Respiration (LS1): A Hands-On Approach for Grades 6â12
Integrate the NGSS and CCSS ELA by using a cycle of science and ELA activities to help students learn about the flow of energy between photosynthesis and cellular respiration
Mapping the energy landscape of biomolecules using single molecule force correlation spectroscopy (FCS): Theory and applications
In the current AFM experiments the distribution of unfolding times, P(t), is
measured by applying a constant stretching force f_s from which the apparent
unfolding rate is obtained. To describe the complexity of the underlying energy
landscape requires additional probes that can incorporate the dynamics of
tension propagation and relaxation of the polypeptide chain upon force quench.
We introduce a theory of force correlation spectroscopy (FCS) to map the
parameters of the energy landscape of proteins. In the FCS the joint
distribution, P(T,t) of folding and unfolding times is constructed by repeated
application of cycles of stretching at constant fs, separated by release
periods T during which the force is quenched to f_q<f_s. During the release
period, the protein can collapse to a manifold of compact states or refold. We
show that P(T,t) can be used to resolve the kinetics of unfolding as well as
formation of native contacts and to extract the parameters of the energy
landscape using chain extension as the reaction coordinate and P(T,t). We
illustrate the utility of the proposed formalism by analyzing simulations of
unfolding-refolding trajectories of a coarse-grained protein S1 with beta-sheet
architecture for several values of f_s, T and f_q=0. The simulations of
stretch-relax trajectories are used to map many of the parameters that
characterize the energy landscape of S1.Comment: 23 pages, 9 figures; accepted to Biophysical Journa
Dehydrin-Like Proteins in Soybean Seeds in Response to Drought Stress during Seed Filling
There is no information on accumulation of dehydrin proteins during seed development and maturation of soybean [Glycine max (L.) Merr.] in response to drought stress. Our objective was to study accumulation of dehydrin-like proteins in developing soybean seeds in response to drought stress. A greenhouse experiment and a field experiment were conducted. In the greenhouse experiment, three treatments were imposed on soybean plants after beginning of linear seed filling (R5): well-watered (WW), gradual stress (GS) imposed before severe stress, and sudden severe stress (SS). In the field treatments were irrigation (I) and nonirrigation (NI) (rainfed) conditions imposed from R5 to R8 (mature seeds). Greenhouse results indicated dehydrin-like proteins (28 and 32 kDa) were detected 18 d after R5 (R5.8) in developing seeds from drought-stressed plants but not in seeds from the well-watered plants. In the mature seeds, dehydrin-like proteins (28, 32, and 34 kDa) were detected in seeds from drought-stressed plants as well as the well-watered plants. In the field, dehydrin-like proteins accumulated similarly under irrigation and nonirrigation conditions, with the first detection for dehydrins (28 and 32 kDa) at 22 d after R5 (R6). Accumulation of dehydrin-like proteins was maximal in seeds harvested at 43 d after R5 (seed physiological maturity)
A Cross-Cultural Comparison of Business Complaint Management Expectations
This paper is in closed access until 9th Dec 2016.Copyright © Taylor and Francis Group, LLC. This study explores the complaint management expectations of 72 British and 74 German organizational buyers using automated online means-end laddering and a Hierarchical Value Map presentation. It conceptualizes the links between expected complaint resolution attributes by the buyer (i.e., means) and the buyer's value perceptions (i.e., ends). Unlike previous research, we highlight similarities and differences in the drivers behind and attributes of complaint management expectations across two countries (Germany and the United Kingdom). Even in countries appearing to be similar economically and culturally, we find differences in the desired attributes. British buyers, for example, emphasize softer complaint resolution attributes compared to Germans. Our study is the first to present a model of complaint management expectations incorporating the role of culture, and it provides managerial directions on standardization and adaption of complaint resolution attributes. Furthermore, it evaluates justice dimensions (especially interactional justice) and their impact on perceptions of complaint management
DehydrinâLike Proteins in Soybean Seeds in Response to Drought Stress during Seed Filling
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